Battery power pack



FIG. 1 is a front perspective view of the battery power pack design;

FIG. 2 is a rear perspective view of the of the battery power pack design;

FIG. 3 is a front elevational view of the battery power pack design;

FIG. 4 is a side elevational view of the battery power pack design;

FIG. 5 is a side elevational view of the opposed side of the battery power pack design;

FIG. 6 is a rear elevational view of the battery power pack design;

FIG. 7 is a top view of the battery power pack design; and,

FIG. 8 is a bottom view of the battery power pack design. 

I claim the ornamental design for a battery power pack, as shown and described. 